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<p>[QUOTE=&quot;900fine, post: 466618, member: 6036&quot;]There you have it, but add one more ingredient : a water resistant, air tight enclosure - in my case, a safe.</p><p>&nbsp;</p><p>Dessicant doesn&#039;t help <i>as much</i> in a safe deposit box, because the boxes are not very air tight. Some moisture will flow through. The more air tight the enclosure, the more effective dessicant will be.</p><p>&nbsp;</p><p>Measure the humidity. Get a hygrometer like they sell for humidors (cigar smokers). Inexpensive, but plenty accurate for what we&#039;re doing. The only way to play smart is to play informed, so you gotta measure humidity. Google.</p><p>&nbsp;</p><p>Get one that has a High / Low / Reset. When you open the safe door, the outside air flows in and makes the humidity read high. You want to know what the humidity has been with the door closed, so reset it everytime you close the door and look at the &quot;LOW&quot; number when you open it up.</p><p>&nbsp;</p><p>My coin humidity is in the upper teens; ambient air around here tends to run about 50%rh.[/QUOTE]</p><p><br /></p>

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